Fifty years ago, bed bugs were nearly eliminated in the United States by using of pesticides like DDT. Today bed bugs are back in beds and theaters. DDT is no longer used due to environmental issues. Pyrethrums are currently the top choice for bed bug infestations. Pyrethrums are especially useful to us because they generally have a stronger effect on bugs than on humans and animals.

Some bed bugs had mutations in their genetic code which allowed them to survive the chemical pesticide and they produced chemically resistant offspring. How can this be explained?

Question 5 options:

bed bugs chose other bugs to partner with who had the mutation


mutations involved in the genetic variation of the bugs were chosen by them


bed bugs chose other bugs to partner with who had no mutations


mutations involved in the genetic variation of the bugs are random

Answers

Answer 1

d

Explanation:

i looked up and it said mutation random


Related Questions

Black mice and tan mice are native species that are observed in a particular region. Human habitation in the region caused an invasive mouse species to enter the region. These mice are brown and share the same food requirements as black mice. Tan mice have different food requirements. How will this change affect the food web in the region? A. The availability of food resources for black mice and brown mice will decrease. B. The population of tan mice will decrease. C. The black mice and tan mice will compete for food resources. D. The tan mice and brown mice will compete for food resources.

Answers

Answer:

A

Explanation:

The correct answer would be that the availability of food resources for black mice and brown mice will decrease.

Since the food requirements of the black mice are the same as that of the invasive brown mice, the available food supply that used to be only for the black mice would now be shared by the two strains of mice. Hence, the available food for the two groups of mice will naturally decrease.

There is no sufficient information to conclude that the population of tan mice will decrease, hence, option B is incorrect.

The black mice and tan mice have different food requirements going by the information available in the illustration, hence, both cannot compete for food resources. Option C is, therefore, incorrect. In the same vein, option D is incorrect because the tan mice have different food requirements from the brown mice.

The only correct option is A.

Why are plants intelligent?

Answers

Answer:hope tht helped

Explanation:

two similarities between mesozic and Cenozoic era on the basis of evolution​

Answers

Answer:

Similarities between mesozoic era and cenozoic era are defined below :

- Mesozoic era and Cenozoic era both started to evolve right after the mass extinct according to the sources of evolution.

- Mass extinction is stated as (K-extinction) and many of the major life forms evolved during these two eras.

- Fossils of birds and reptiles were found in Mesozoic era and Fossils of mammals were found in the Cenozoic era.

Explanation:

Thanks for asking the question

Air pollution is a major health problem caused by the burning of fuels in
a.vehicles.
b.power plants and factories.
c.home furnaces.
d.All of the above

Answers

Answer:

D

Explanation:

all of those contribute to air pollution

Answer: D

Explanation:

The water inside a teacup is very hot, about 80 degrees Celsius The water inside a large bathtub is warm, about 40 degrees Celsius. Which has the greater average kinetic energy

Answers

i didn’t get to see this answer but it was very easy for me

An amoeba ingests large food particles by​

Answers

From a method called phagocytosis.

What wave travels along the surface of a medium?

Answers

ocean waves. Reason- A surface wave is a wave that travels along the surface of a medium. Ocean waves are the best-known examples of surface waves. In a surface wave, particles of the medium move up and down as well as back and forth in an overall circular motion.

You have been given three plants: Two have solid black flowers, and one has grey flowers. You cross each black-flowered plant to the grey plant with the following results:
Parents: black #1 X grey F1: 87 solid black, 83 spotted black
Parents: black #2 X grey F1: all black
To try and make sense of these results, you intercross the solid black-flowered F1 plants from cross #2 with the following results in the F2:
132 black
35 spotted black
11 grey
What are the genotypes of the parents, F1 and F2 generations?

Answers

Answer:

The correct answer would be -

F1: #1 black flower plant = Aabb and aabb and #2 = AABB and aabb

F2 = AaBb and AaBb

Explanation:

In this cross, it is the case of the dominant epistasis type of inheritance pattern as Gene A masks the expression of gene B but expresses itself only in presence of b or B.

The ratio of the dihybrid cross change in such inheritance from  9: 3: 3: 1 ratio changes to 12: 3: 1.

Check for the images for cross:

What is your opinion on the use of stem cells, obtained from fertilized eggs or early stage embryos

Answers

I believe that it can help in the future. Who knows embryonic stem cells may lead to new, and more effective treatments for serious human ailments and alleviate the suffering of thousands of people!

USE OF STEM CELL:

The first attempts to turn mature cells back into pluripotent stem cells involved a process called cloning. In the cloning process, an egg is fertilized in the lab, and right after fertilization, the DNA is removed from the egg.These stem cells come from embryos that are three to five days old. These are pluripotent (ploo-RIP-uh-tunt) stem cells, meaning they can divide into more stem cells or can become any type of cell in the body. This versatility allows embryonic stem cells to be used to regenerate or repair diseased tissue and organs.Despite the potential benefit of using human ES cells in the treatment of disease, their use remains controversial because of their derivation from early embryos.

Learn more:

brainly.com/question/12483864

Body cells are all I need help

Answers

Haploid :) sorry if I’m wrong

Can someone help me on this question for brainliest please.

Answers

The stream might over flow and start going faster.

Hope this helps!

Which of the following foods contain MOSTLY lipids? (Check all that apply)

Bread
Broccoli
Soda
Pasta
Olive oil
Fish
Butter
Nuts
Steak

Answers

Answer:

Olive oil.

Explanation:

Edible oils are lipids. These include vegetable oils such as:

canola cottonseed grape seed corn olive peanut and many others

1. Which genotype(s) and phenotype for fur length are dominant?

2. Which genotype(s) and phenotype for fur length are recessive?

Answers

Complete question:

You will find the complete problem in the attached files, where all the proposed crosses are detailed.

Answer:

1. Which genotype(s) and phenotype for fur length are dominant?  

Genotype: FF + FfPhenotype: Short fur

2. Which genotype(s) and phenotype for fur length are recessive?

Genotype: ffPhenotype: Long fur

Explanation:

Available data:

F is the dominant allele that codifies for short furf is the recessive allele that codifies for long fur

CROSSES:

1) Test One: If I breed a short fur, FF female with a short fur, Ff male, then I will expect to see what type of offspring?  

all short fur;  some short and some long fur;  all long fur offspring.

Cross:        FF   x   Ff

Gametes) F   F     F   f

Punnet square)   F         F

                  F     FF       FF

                  f      Ff        Ff

F1) Genotype:

     2/4 = 1/2 = 50% FF

     2/4 = 1/2 = 50% Ff

     Phenotype:

    4/4 = 100% Short-fured individuals

2) Test Two: If I breed a short fur, Ff female with a short fur, Ff male, then I will expect to see what type of offspring? Pick 1)

all short fur;  some short and some long fur;  all long fur offspring.

Cross:         Ff   x   Ff

Gametes) F   f      F   f

Punnet square)   F         f

                  F     FF       Ff

                  f      Ff        ff

F1) Genotype:

     1/4 = 25% FF

     2/4 = 1/2 = 50% Ff

     1/4 = 25% ff

     Phenotype:

    3/4 = 75% Short-fured individuals

    1/4 = 25% long-fured individuals

3) Test Three: If I breed a long fur, ff female with a long fur, ff male, then I will expect to see what type of offspring? Pick 1)

all short fur;  some short and some long fur;  all long fur offspring.

Cross:        ff   x   ff

Gametes) f   f     f   f

Punnet square)   f         f

                      f     ff       ff

                      f      ff       ff

F1) Genotype:

     4/4 = 100% ff

     Phenotype:

    4/4 = 100% long-fured individuals  

Answer:

Here is an example of my Heredity Lab Report for FLVS if anyone needs it.

Explanation:

(it is a link)

What are the three forces that affect wind?

Answers

Answer:

Pressure gradients, the rotation of the earth, and friction are three primary variables that influence the wind. Atmospheric pressure gradients are the ultimate source of wind. The wind blows from high-pressure zones to low-pressure areas.

OAmalOHopeO

Please help whoever’s right will get brainliest :)

Answers

Answer:

Cell Theory

1.  All living organisms are made of cells

2. Cells arrive from previously existing cells

3. Cells are the basic unit of structure...

Explanation:

Name one photosynthesis organism and how it affects the plant.​

Answers

Answer:

Hey!

Explanation:

Plants like Sunflowers are organisms that use photosynthesis, and photosynthesis makes it so where the plant can get energy out of Radiant Energy. Hope this helps!

In guinea pigs, smooth coat (S) is dominant over rough coat (s), and black coat (B) is dominant over white coat (b). In the cross SsBb × SsBb, how many of the offspring will have a smooth black coat, on average?
a. 1⁄4
b. about 9⁄16
c. 1⁄16
d. 6⁄16
e. 2⁄6

Answers

Answer:

The correct answer is - b. about 9⁄16

Explanation:

I the given question is given:

Smooth coat (S) is dominant over rough coat (s), and black coat (B) is dominant over white coat (b)

Then cross betwen SsBb × SsBb

gametes:

SB, Sb, sB, and sb for each parent:

        SB       Sb      sB      sb

SB   SSBB  SSBb   SsBB  SsBb

Sb   SSBb  SSbb   SsBb  Ssbb

sB    SsBB  SsBb    SsBB  ssBb

sb    SsBb   Ssbb    ssBb   ssbb

every offspring with SB in the combination will express a smooth black coat that is 9 according to the Punnett out of 16 offspring.

.. Which pair of organisms is most likely to have adaptations in common?

Answers

Answer: the 1st one

Explanation:

A grassland predator and prey, such as a cheetah and a zebra. Therefore correct option is (A).

What organisms have common adaptations?

The pair of organisms that is most likely to have adaptations in common is a pair of organisms that share similar environmental pressures or ecological niches. Organisms that occupy similar habitats, have similar diets, or face similar challenges are more likely to evolve similar adaptations over time.

For example, predatory animals such as lions, tigers, and leopards have evolved similar adaptations such as sharp claws, powerful jaws, and keen senses to help them catch prey. Similarly, desert-dwelling animals such as camels, kangaroo rats, and fennec foxes have adaptations such as the ability to conserve water, tolerate heat, and dig burrows in sandy soil to survive in their arid environments.

Learn more about adaptation, here;

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why albert why just why

Answers

Answer:

Albert responds with: ...

Hope this helps!

xoxo,

cafeology

Answer:

Explanation:

Why...

If anyone knows this please let me know and explain??

Answers

Answer:

I am pretty sure the answer is Melting

Explanation:

C) Evaporating

The molecules in the first state are liquid (you can tell how they aren’t in a fixed structure) break apart randomly and evaporate into a gas

A group of squirrels living in the same area and competing for similar resources is called a

Answers

ANSWER: interspecific competition

pls help will give branliest answer

(it's the highlighted question)

Answers

This means that if an individual is heterozygous for a particular gene, the dominant allele will completely mask the recessive allele.This results in a phenotype that is different from both the dominant and recessive alleles, and appears to be a mixture of both. This Punnett square shows incomplete dominance. Hope this helps! Please mark Brain list!

Which two major parts of the Earth system does this photo most cieery
show?

A. Geosphere
B. Cryosphere
C. Atmosphere
D. Biosphere

Answers

Answer:

I'd say that your answers are A) and B).

Can you help me please

Answers

Answer:

what is the question?  please give more details

Explanation:

A mineral MUST have specific traits to be a mineral. Choose ALL required traits that define a
mineral.
1.It is made in a lab
2.It is an inorganic solid
3.It is an organic solid.
4.It is made in nature.
5.It has a variable chemical composition.
6.It has a definite chemical composition.
7.It has a crystalline structure

Answers

I think the answers are 3,4,5,6

How might environmental manipulation of a crop have unexpected consequences? a. The new crop may require more water than the original. b. The crop may harm the environment. c. The yield may be reduced. d. All of the above Please select the best answer from the choices provided

Answers

Answer:

D all of the above

Explanation:

just took the test

Environmental manipulation can have both types of consequences - beneficial as well as adverse. At times, these changes can be unexpected too. The correct option is D.

What negative effect does environmental manipulation of a crop have?

The crop can have a need for more water as compared to the original if there would be a change in the soil, region or even climate of the crop. An increase in the temperature can affect the availability of water to the crop.

Changes in the soil can result in variation in the availability of minerals required for the growth of plants. This can cause improper health condition of the crop, which will ultimately decrease its yield.

Overuse of fertilizers and pesticides can affect the quality of the soil and also have a negative impact on the crop. It can also be passed on to the consumers of the crop due to bioaccumulation.

Thus, all of the mentioned statements are correct. Hence, the correct option is D.

Learn more about environmental manipulation here:

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True or False: Food Webs are generally more accurate and detailed models of an ecosystem than Food Chains.

Answers

Answer:

True

Explanation:

They have more options and possible ways

Answer:

true,

The food web provides a better model of an ecosystem because the food web is a model between MANY different consumers and producers in an ecosystem. While the food chain is a model for just one consumer and producer. ... Because energy is lost as it moves from producers to consumers, the bottom level is the largest.

3. Which of the following is a major functional characteristic of all organisms? (a) movement,
(b) growth, (c) metabolism, (d) responsiveness, (e) all of these.

Answers

Answer:

The correct option is E..all of these

Explanation:

This is because all living exhibit functional characteristics which are movement, respiration, nutrition, irritability, growth, excretion, respiration and death. This characteristics are indication that organisms are living things.

Growth: it is the increase in size of organisms. All living organisms grow, they increase in size , from zygote to adulthood.

Metabolism...all living organisms excreate, they absorb nutrients and remove unwanted waste products and undigested good like sweat, urine e.t.c.

Responsiveness....All living organisms respond to stimulus, they respond to external environment or change.

How could biotechnology lead to a decrease in the use of pesticides?

Answers

Plants can be genetically engineered through the use of biotechnology to be less susceptible to insects. This trait will make pesticide use less necessary.

This is the sample answer on edge.

This method combines the genetic productivity enhancement of plants with the management of their hazardous organisms.

How is biotechnology used?

Typically, agricultural biotechnology is utilized to boost plant production productivity to reduce the use of pesticides.

In agriculture by applying biotechnology, pest management and the use of pesticides will be reduced for modified plants.

The emergence of insect-resistant plants will be accelerated by technological advancements, and with an improved grasp of biotechnological processes, the acceptance of biotechnology goods might grow.

Therefore to reduce paste management and make crop resisitance for paste biotechnology is used.

Learn more about biotechnology, here:

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Complete the sentences by matching the names of trees to the appropriate blanks. to do this, drag the names on the left into the appropriate blanks in the sentences on the right. match the words in the left column to the appropriate blanks in the sentences on the right. terms may be used more than once. make certain you have filled every blank with a term before clicking submit.
1. deciduous trees lose their leaves seasonally and include trees such as maple and elm.
2. conifer leaves are generally thin and needle-like, while seeds are contained in cones. conifers include cedar and pine.
3. evergreens are plants that maintain their leaves in all seasons and include trees such as cedar, elm, and pine.
4. hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as maple, , and cedar. elm returned you filled in 2 of 10 blanks incorrectly. mango trees are tropical broad leaf plants that maintain their leaves all year long. no credit lost. try again.

Answers

Complete question:

Complete the sentences by matching the names of trees to the appropriate blanks. to do this, drag the names on the left into the appropriate blanks in the sentences on the right. match the words in the left column to the appropriate blanks in the sentences on the right. terms may be used more than once. make certain you have filled every blank with a term before clicking submit.

ElmMaple MangoPine     Cedar

1. deciduous trees lose their leaves seasonally and include trees such as ----- and ----.

2. conifer leaves are generally thin and needle-like, while seeds are contained in cones. conifers include ---- and -----.

3. evergreens are plants that maintain their leaves in all seasons and include trees such as ---, ---, and ---.

4. hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as ---, ---, and ---.

Answer:

1. deciduous trees lose their leaves seasonally and include trees such as elm and maple.

2. conifer leaves are generally thin and needle-like, while seeds are contained in cones. conifers include pine and cedar.

3. evergreens are plants that maintain their leaves in all seasons and include trees such as Pine, Cedar, and Mango.

Explanation:    

Deciduous trees:  These plant species lose their leaves every year during the cold and dry autumns and winters, as it is the most limiting period over the year. Foliage resprout again during the warmer wet season when it rains more often, during spring and summer. Template forest biome characterizes for having deciduous trees such as oaks, maple, or elm, among other phanerophyte species.

1. deciduous trees lose their leaves seasonally and include trees such as elm and maple.

Conifer: Correspond to the gymnosperm group. They are perennial, vascular, evergreen, woody plants. They characterize for having a straight trunk with secondary growth and no vessels in the xylem tissue. Their branches usually develop horizontally, with needle-like leaves growing on them, unisexual flowers, and seeds included in a cone.

 2. conifer leaves are generally thin and needle-like, while seeds are contained in cones. conifers include pine and cedar.

Evergreens: Perennial plants that keep their green leaves the whole year.  These are the opposite of the deciduous trees. Tropical forests characterized for having these broadleaf plant species, such as mango, that are favored by the environmental conditions as precipitations are abundant and the average temperature is elevated most of the year. Also, many evergreen plants are typical of the boreal forest.  Pines, cypress, cedar, and sequoia are examples of these last ones.

3. evergreens are plants that maintain their leaves in all seasons and include trees such as Pine, Cedar, and Mango.

Hardwoods: Angiosperms. Xylem with vessels. These species present a high diversity in shape, textures, and sizes. They might reproduce asexually or sexually by producing flowers, fruits, and seeds. Also, they might be either evergreen or deciduous.

4. hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as Elm, Maple, and Mango.    

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